43442002111 has 4 divisors (see below), whose sum is σ = 43442919432. Its totient is φ = 43441084792.

The previous prime is 43442002103. The next prime is 43442002127. The reversal of 43442002111 is 11120024434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43442002111 - 2³ = 43442002103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43442002141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383521 + ... + 483706.

It is an arithmetic number, because the mean of its divisors is an integer number (10860729858).

Almost surely, 2^43442002111 is an apocalyptic number.

43442002111 is a deficient number, since it is larger than the sum of its proper divisors (917321).

43442002111 is an equidigital number, since it uses as much as digits as its factorization.

43442002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917320.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 43442002111 its reverse (11120024434), we get a palindrome (54562026545).

The spelling of 43442002111 in words is "forty-three billion, four hundred forty-two million, two thousand, one hundred eleven".